Insight: I believe it is possible for them to love Jesus and still be living a sinful lifestyle. It would be an indicator of the depth of their love and commitment to Jesus though. The more you love Jesus, the more you try to be like him. Someone who is bound to habitual sin; has to come to a place where they love Jesus enough and are willing to trust Him enough, to allow Him to set them free in those areas. Many people compartmentalize their lives and allow God only into parts of their life, not into every area. Once again, it just portrays their level of commitment. However, be cautious about judging people based on their lifestyles, truly it is only Jesus who knows exactly the heart of these people and only He knows the exact depth of their love and commitment to Him. My challenge for you is if you know someone living a sinful lifestyle, but says they love Jesus, continue to pray that their relationship with Jesus would continue to grow and deepen. Let Jesus do the rest.